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On The Nature Of Winter Cooling And The Recent Temperature Shift On The Northern Gulf Of Alaska Shelf, Markus A. Janout, Thomas J. Weingartner, Thomas C. Royer, Seth L. Danielson
On The Nature Of Winter Cooling And The Recent Temperature Shift On The Northern Gulf Of Alaska Shelf, Markus A. Janout, Thomas J. Weingartner, Thomas C. Royer, Seth L. Danielson
CCPO Publications
[1] In spring 2006 and 2007, northern Gulf of Alaska (GOA) shelf waters were ∼1.5°C below average throughout the similar to ∼250 m deep shelf and the salinity-dependent winter stratification was anomalously weak due to above (below) average surface (bottom) salinities. Spring 2007 and 2008 temperatures were also similar to ∼-1.5°C below average, but the anomalies were confined to the upper 100 m due to moderate salt stratification. Shelf temperatures in these 2 years were among the lowest observed since the early 1970s, thus interrupting an approximately 30-year warming trend. We examined winter cooling processes using historical conductivity-temperature-depth (CTD) profiles …